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Genetic variation of natural and cultured stocks of Paralichthys olivaceus by allozyme and RAPD 被引量:2
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作者 尤锋 张培军 +1 位作者 王可玲 相建海 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2007年第1期78-84,共7页
Population genetics of the left-eyed flounder, Paralichthys olivaceus, including natural and cultured stocks distributed in the coastal waters near Qingdao of eastern maritime China, was analyzed in allozyme and RAPD.... Population genetics of the left-eyed flounder, Paralichthys olivaceus, including natural and cultured stocks distributed in the coastal waters near Qingdao of eastern maritime China, was analyzed in allozyme and RAPD. The results showed that among total 29 gene loci of 15 isozymes, 9 and 7 were po- lymorphic in natural and cultured stocks, respectively. The status of genetic diversity in P. olivaceus is low in terms of polymorphic loci in chi-square test and genetic departure index of Hardy-Weinberg equi- librium. More alleles in IDHP, CAT, GDH and Ldh-C allozymes were found in the fish, which could be used as markers in assortive breeding and distinguishing stock, population or species evolution. Total 88 and 86 RAPD bands ranging from 200 to 2 500 bp were recognized individually in average of 7.8–8.0 bands per primer. The genetic diversity in cultured stock is lower than that in natural ones showing an ob- viously decreasing genetic divergence. Therefore, effective countermeasures must be taken to protect ge- netic resources of marine cultured fishes. The 2 markers have their own pros and cons. Combining the 2 markers to investigate the genetic variation of populations is suggested. The results provide basic data of this flounder and they are useful for studying genetic improvement and genetic resources of the fish. 展开更多
关键词 Paralichthys olivaceus genetic variation natural and cultured stocks ALLOZYME RAPD
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Mt.Wuyi——A World Cultural and Natural Heritage
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《China Today》 2001年第5期25-25,共1页
关键词 World A World Cultural and natural Heritage Mt.Wuyi
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Cultural and Natural Heritage of China and the World
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《China Today》 2001年第6期38-44,共7页
关键词 Cultural and natural Heritage of China and the World
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Archaeology and Heritage Resource Management in Siuyu, Singida Region (Tanzania) 被引量:1
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作者 Makarius Peter Itambu Nazarius Michael Hongoa 《Journal of Geoscience and Environment Protection》 2016年第6期34-45,共12页
This paper was produced as a part of our ongoing research endeavors in Singida destined to provide a better understanding of early humans’ cultures, and to promote the conservation of cultural and natural heritages o... This paper was produced as a part of our ongoing research endeavors in Singida destined to provide a better understanding of early humans’ cultures, and to promote the conservation of cultural and natural heritages of the region. The overreaching goals of this research are to holistically reconstruct the archaeology of Singida by studying cultural processes over time and space. Equally important is to promote tourism in the Singida eastern axis and, to salvage the heritage assets of the region from total disappearance as evinced by the activities of modern day civilization, broadly, to shed more light about the past life ways, and the subsistence behaviours of our ancestors. Our recent archaeological reconnaissance conducted in January 2016 in Siuyu ward discovered rock paintings and a rock shelter with archeological potential (Ngaghe rock shelter), containing a large scatter of Later Stone Age (LSA) archaeological artifacts that are crucial to the unravelling of the prehistoric human behaviours in Singida. Preliminary results from our research revealed that Singida region is an ideal place for undertaking research on early human bio-cultural evolution from LSA times to the present. Data from this study will be utilized to re-write the history of Singida region, to make sure that it is sustained for future generations. Despite their rarity, uniqueness, scientific and aesthetic values, these heritage assets are neither protected by village nor regional by-laws. Before deliberate conservation measures are put in place, it is very important to have good records of the areas that are attractive to tourism, and their current state of preservation. These sites were undocumented by the previous researchers, and in certain circumstances are unknown even to the local people of the Siuyu ward. Although the archaeology of Singida east is much “terra incognita”, this article is timely, for promoting archaeo-tourism and raising public awareness on the archaeology of Singida. Additionally, this work provides a stimulus to the authorities to take action by introducing effective conservation measures for the sustainability of these priceless non-renewable resources. 展开更多
关键词 ARCHAEOLOGY Heritage Conservation Cultural and natural Resources TOURISM
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Historical Course Follows Climate Change: Patterns of the Northern Hemisphere — From Peoples’ Migration until the Industrial Revolution (3<sup>rd</sup>-18<sup>th</sup>Century)
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作者 Werner Schneider Elias Salameh 《Open Journal of Geology》 2018年第13期1167-1194,共28页
This paper relates to the statement that the so-called “Little Ice Age” (RCC 6: 1.350-1.800 A.D.) represents—besides the 8k-Event (8.200-8.000 yr cal. B.P.)—the fastest and strongest onset in Holocene History [1].... This paper relates to the statement that the so-called “Little Ice Age” (RCC 6: 1.350-1.800 A.D.) represents—besides the 8k-Event (8.200-8.000 yr cal. B.P.)—the fastest and strongest onset in Holocene History [1]. Its intention focuses on the correlation of interplaying natural processes (i.e. solar energy variation, aerosols, oceanic currents, volcanism as part of plate tectonics, heat flow) with social/political evidence through the time-span of Peoples’ Migration until Industrial Revolution (3rd-18th Century). The time-span comprises the cool/wet/respectively dry climate phase of the P.M. (260-550), a Climate Optimum (600-1.100 A.D.) owning a final Thermal Maximum (1.100-1.260 A.D.) and the “little Ice Age” (1.350-1.800 A.D.), the latter intercalated by the Sp&#246;rer Minimum (1.460-1.550 A.D.) and the Maunder Minimum (1.650-1.720 A.D.). Thereby, an average temperature difference of 1.0&#176;C - 2.0&#176;C seems sufficient for incising climatic/cultural consequences [2]. It has become obvious that a Climate Optimum primarily provides constructive life conditions;however with a problematic final as the following “Effect-Chain” tells: balanced agricultural/cultural population growth → rich harvests → satisfying nourishment → health, encouragement → overpopulation under favorable materialistic conditions → increasing stress → lack of food, high prices → revolts → migration. In contrast, cool/wet/resp. dry conditions originate destructive/depressive conditions (see Peoples’ Migration) which initiate the following “Effect Chain”: bad agricultural conditions → poor/no harvesting → famine → disease, growing death rate → social, political revolts, wars → human cruelties with psychic/religious background (inquisition, witch-combustion → general chaos (30 yr-war) → death, migration (maritime endeavors, colonization). Furthermore, it should be stressed that volcanic aerosols play besides the solar influx variation—an important role on climate/cultural change [3]. However, the effects of oceanic currents’ heat flow of Mid-Oceanic Ridges and Hot Spots, as well as Earth-Magnetism and Sun/Earth Geometry are poorly understood in this context (Example: Iceland as hot spot situated on the Mid-Atlantic Ridge having been working since 40 Ma). The Chapter-introducing citations play a challenging role in regard to Science Criticism and touch the so-called 95% Confidence line (accepted realm of causal interrelation and according recommendation to Society [4]). 展开更多
关键词 Little Ice Age Climate-Change Social/Political Concern Psychic/Spiritual Implication VOLCANISM Plate Tectonics Peoples’ MIGRATION Northern HEMISPHERE natural/Cultural Effect-Chains Science Criticism
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Traditional Ecological Knowledge and Practices of Ethnic Kyrgyz of the Eastem Pamir in Ethnotoponyms
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作者 Jyldyz Doolbekova 《Journal of Philosophy Study》 2017年第12期662-671,共10页
The author analyzes ethnotoponyms, the local place names of Kyrgyz people living in the Murgab region of Tajikistan's Gorno-Badakhshan Autonomous region. The author conducted field research in the region in 2010-2015... The author analyzes ethnotoponyms, the local place names of Kyrgyz people living in the Murgab region of Tajikistan's Gorno-Badakhshan Autonomous region. The author conducted field research in the region in 2010-2015. The article also builds on data from the works of pre-Soviet Russian and western travelers, who studied the region at middle 19th early 20th centuries. The author concludes that local place names given by Kyrgyz people to the mountains, rivers, lakes, and valleys reflect the unique features of natural landscapes of Eastern Pamir as well as Kyrgyz nomads' empirical observations of natural phenomena and processes, livelihoods and nomadic values. 展开更多
关键词 ethnotoponyms local place names traditional ecological knowledge natural and cultural heritage Kyrgyz people in Murgab Eastern Pamir
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Study on security and protection of original ecotourism resources in the mountain areas of western Guangxi
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作者 Wu Lianglin Zhou Yongzhang +2 位作者 Chen Zhishen Ding dian Yan Xiaoping 《Ecological Economy》 2008年第1期41-48,共8页
Original ecotourism resources mainly refer to natural and human original ecotourism resources, and it's of fragility, rarity and irreversibility. As a valuable historic heritage and hnportant tourism resources, it pl... Original ecotourism resources mainly refer to natural and human original ecotourism resources, and it's of fragility, rarity and irreversibility. As a valuable historic heritage and hnportant tourism resources, it plays a significant role in developing tourism and economy in such areas as the underdeveloped areas, the mountain areas and mimority areas. The tourism resources in the western mountain areas of Guangxi owe ,superiorities and characteristics 'o their original ecology, Yet, western Guangxi is an ethnic region with fragile karst eco-environment, so it is specialto exploit the tourism resources. The paper defines original eeotourism and analyses the specialties and advantages of the original ecotourism resources as well as thefrailty of the ecotourism resources of the region. The ways of thinking are put forward for safe preservation and sustainable development of the original ecotourism resources, i.e. carrying out measures for the multi-grade protection of heritage resources, setting up a ethnic eco-museum/ ethnic culture eco-park and a gene pool of ethnic cultures, etc. 展开更多
关键词 Original ecotourism resources Multi-grade natural and cultural heritage Gene pool of ethnic culture Resources security Mountain areas of western Guangxi
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Born of geographical environment, coloring for regional context: Concept and progress of geo-architecture 被引量:2
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作者 汪芳 《Journal of Geographical Sciences》 SCIE CSCD 2017年第5期631-640,共10页
In today's world, where re-examination has been given to cultural globalization, the relationship between architectures and specific regions is one of many specific issues. At this time, the study of architecture fro... In today's world, where re-examination has been given to cultural globalization, the relationship between architectures and specific regions is one of many specific issues. At this time, the study of architecture from the perspective of geography has significant meaning for treasuring regional characteristics and protecting the essence of ethnic culture. The study of geo-architecture includes two aspects: the influence of geographical environment upon architecture and reflexively, architectural responses to geographical environment. In "Geo-Architecture and Landscape in China's Geographic and Historic Context Series"(4 volumes), published by Springer Nature in 2016, the contents of "geo-architecture" has been interpreted from various angles as form, function, semantics and symbol. This book is the first to be entitled "Geo-Architecture", which studies the relationship between geography and architecture from the perspective of geographical environment and historical context in China. The book's research reveals the influences of different geographical scales, such as zone(macro), region(middle) and site(micro) scales, on architecture; it discusses dynamic and systematic thought, including such research elements as "Object-Subject-Time", and it reflects views on pattern and process of cultural landscape. Research on geo-architecture aims to help construct the security pattern of the cultural landscape for the new requirements of a new era, which is used to optimize spacial structure, stimulate heritage conservation and renewal, respect the geographical environment, pay attention to historical culture and sustain emotional memory. 展开更多
关键词 geo-architecture geographical environment cultural landscape Springer Nature
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